1. Single segmented telescoping gill on each coxa (Fig. 2.2.1). . . . . . . . . . Taeniopteryx
Coxae without gills. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Dorsal fringe of fine, silky intercalary hairs usually absent from cercal segments (only short setae in apical circlets present on each segment; inner hairs of mandible a small patch, not extending onto molar ridge; brown indistinclty patterned body. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taenionema*
Doral fringe of fine, silky intercalary hairs present, at least on basal cercal segments, sometimes absent on Strophopteryx fasciata, inner hairs of mandible extend toward molar ridge; brown indistinclty patterned body. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Tibiae with both inner (ventral) and outer (dorsal) hair fringe. Single, short dorsal hairs on basal cercal segments; clothing hairs sparse on basal half of 9th sternal plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Strophopteryx fasciata
Tibiae with outer (dorsal) hair fringe only. Clothing hairs numerous on basal half of 9th sternal plate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oemopteryx**
* It is not recommended to carry classification to species with Taeniopteryx. The extant larval keys can lead to misidentification. Rearing nymphs to adults is a safer way to speciate (DeWalt, pers. commun.).
* Taenionema atlanticum is listed as present in Ohio in Stewart and Stark (2002) but is not included in DeWalt, et al. (2012).
** Oemopteryx contorta is listed in Stewart and Stark (2002) as present in neighboring states (PA and WV). O. glacialis is listed in Stewart and Stark (2002) as present in a neighboring state (WV). Neither are listed in DeWalt, et al. (2012) for Ohio. These may occur in the unglaciated south-east of Ohio.
Key to the Genera of Ohio Taeniopterygidae Nymphs
